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A Continuum Based Solid Shell Element  Based on EAS and ANS
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This work is a stepping stone towards developing higher order shell element for

simulating composite manufacturing procedure. In this study, a continuum

approach suitable for combined material and geometrically nonlinear analysis

for an eight node solid shell element SS8 is explained. The formulation of SS8

comprises two ingredients to alleviate undesirable locking effects: 1) Assumed

Natural Strain concept, which has proven to alleviate the curvature thickness

and transverse shear locking problems. 2) Enhanced Assumed Strain, which

adds enhanced degrees of freedom to improve the in-plane response of the

element and the curvature thickness locking problem. This formulation has

been extended to represent geometric and material non-linearity using Total

Lagrangian approach. Finally, finite strain formulation has been verified by

numerical examples. Results when compared to continuum shell element in

ABAQUS show a reasonable agreement with a relative error of less than 2%.

Place, publisher, year, edition, pages
2015.
Keyword [en]
Lagrangian, Finite Strain, Solid Shell Element, Enhanced Assumed Strain.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-11616OAI: oai:DiVA.org:bth-11616DiVA: diva2:901457
Subject / course
MT2525 Masters Thesis (120 credits) in Mechanical Engineering with emphasis on Structural Engineering
Educational program
MTAMT Master of Science Programme in Mechanical Engineering with emphasis on Structural Mechanics
Supervisors
Examiners
Available from: 2016-02-08 Created: 2016-02-08 Last updated: 2016-06-16Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf